Percentages

Practice Questions

Change 0.08 to a fraction.

Convert ⅜ to a percentage.

Find 30% of 2500 m.

Express 35 minutes as a percentage of 2 hours.

A farmer increases the output of her farm by 15%. If the previous output was 6500 tonnes, what is her present output?

A shop is having a sale. It sells a set of tools costing $130 at a 15% discount. Calculate the sale price of the tools.

$60000 is borrowed with 4% p.a. simple interest. Calculate:

a) the total interest after 5 years,

b) the total amount paid back after 8 years.

An apartment is bought for ₤75 000 and then resold for ₤87 000. Calculate the percentage profit.

Shares in a company are bought for $600. After a year the same shares are sold for $550. Calculate the percentage depreciation.

$4500 is invested at 9% p.a. compounded yearly. Work out the total value of the investment after 10 years.

A boat is sold for a profit of 28%. If the boat is sold for $15360, work out how much it originally cost the seller.

In a geography textbook, 35% of the pages are coloured. If there are 98 coloured pages, how many pages are there in the whole book?

A farmer takes 250 chickens to be sold at a market. In the first hour he sells 8% of his chickens. In the second hour he sells 10% of those that are left.

a) How many chickens has he sold in total?

b) What percentage of the original number did he manage to sell in

two hours?

The population of a town increases by 5% each year. If in 2007 the population was 86 000, in which year is the population expected to exceed 100 000 for the first time?

In a test Valeria H scored 88%. If she got 3 questions wrong, how many did she get correct?

A one year old car is worth ₤11 250. If its value had depreciated by 25% in that first year, calculate what its price was when new.

A company increased its productivity by 10% each year for the past two years. If it produced 56 265 units this year, how many units did it produce two years ago?

Answers1. 2∕252. 0.3753. 750 m4. 29.2%5. 7475 tonnes6. $110.507. a) $12000

b) $792008. 16%9. 8.33%10. $10653.1011. $1200012. 28013. a) 43

b) 17.2%14. 201115. 2216. ₤1500017. 46500